Apparatus for propelling vehicles.



110.830,631. 1 Y PATPNTPD SEPT. 11, 1906.

A. AHLBRBGHP. APPARATUS P011 PPOPBLLING VEHICLES.y

APPLICATION FILED O0T.30. 1905.

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'new and useful Improvements in Apparatus AUGUST AHLBRECHT, OF PITTSBURG, PENNSYLVANIA.

APPARATUS Fon PROPELLING VEHICLES.

No. 830,631. Specication of Letters Patent.

lApplication filed October 33,1805. Serial No. 284,952.

Patented Sept. 11, 1906.

To all whom t may concern: Be it known that I, AUGUST AHLBRECHT, a subject of the German Emperor, residing at he county of Allegheny vania, have invented certain move the crosslong the length of the slides 4. his shaft 9 is connected to a drive-shaft 17 y meshing gears 13 .and 15, the said drivefor Propelling Vehicles and I do d shaft being mounted 1n bearings following to be a tion of the inven ers skilled in the c it appertains to ke and use the same, reference being had the accompanying drawing' and to the s) gures ofreference marked ereon, which cification.

ecl clear, and eXact 5.11011 by the vehicle.

17 is a disk 28,in an eccentric groove, ing a greater radius than the other 30, adapte to engage with rollers 27, connected to horizontally-disposed bars 25 ,slidablymounted in bearings 26, and each ca able of a limited horizontal movement in t e direction of their length. Arranged beneath the upper platform 1 of the frame. are two bell-cranks v23, W ich are supported in bearings 28 and are connected at their upper ends by short links 24 to the horizontal' bar 25 and the lower extremities of said cranks connected by links 22 to a horizontally-placed bar 20, capable of being moved vertically in guides 21, forming a part of the frame 3. connected to this horizontal bar 20, by means of a head 18, is a downwardly-extending propeller-bar 18, which passes freely through the cross-head 5 and be moved vertically t ereinpl On the other side of the drive-shaft 17 is another crank-shaft 9', operated by a gear-wheel 13 by means of an idler 14 in mesh With the gear 15 of the drive-shaft 17'.

his crank 11 is connected to a lever 7 and by link 6 to a cross-head similar to that already described, the said cross-head being' provided with a propeller-bar and means for operating the same from the horizontal moving bar 25 on the opposite side of the eccentric disk 28.

In operation power is applied to the drivelshaft 17 to give the same a rapid rotatable movement. This movement is transmitted to the cross-heads 5 through the medium of t e several gear-wheels, cranks 11 and 11,levers 7 and 7, and connecting-links 6 and 6 to give said heads arapid reciprocatin move- Y ment in their slides 4, the one hea at the front of the vehicle being drawn back While the other at the rear is moving forward. This same movement of the drive-shaft 17 transmits vertical movement in opposite relation he propeller-bars 18, the one moving upward while the other is going down, caused he action of the rollers 27 and 27 follow t e eccentric path of the groove formed scribed hereinafter.

In t e accompanying drawings, Figure 1 is a side sectional elevation of my improved ap,- paratus for propelling vehicles, the portion being identical with hown, said section being taken on the ine yy of Fig. 3, th being constructed and arranged in accordance with my invention. Fig'. 2 is a plan view of the same.

To put my invention into thereby provid sleig'hs or other vehicles I form from suitable material cross-head erate, the sai head bein link 6 to a vertically-placed l in suitable bearings 8 and through the his lever 7 connected by a ever 7, mounted projecting upward top platform 1 of the frame. is connected to a crank 11,

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in the disk 28, the said. rollers moving "the comprising aseries ofvertioall -disposed prorods 25 and 25 to operate ythey bell-cranks'23',v peller-bars supported onthe ve icle and above thereby forcing the propeller-bars 18 into the the roadway and means for moving said proroadway or liittlie saine free. AThis'verticalV pellers vertically and horizontally in oppo- 5 movement of the propellers 18 is timed to site relations, said means comprising a recip- 3 5 correspond with the reciprocating movement rocating .cross-.head carrying said. propellerof the cross-heads 5 in such manner ythat said bars and an eccentric grooved disk for movpropeller will engage with the roadway when ingsaidbars vertically within the cross-heads, thecrossz-head at the front of lthe vehicleisat whereby one series isengaged to .propel the io one end of' its stroke'` hilethatlat the'rear isl vehicle while the other is moving'into posi- 4o at the; opposite orpintothferwgrds, said heads tion. f l L i p, move toward and "aw ay 'iroin each other `in 2.l ln an I.apparatus -for propelling vehicles, unison'r` f lfhesepropeller-bars moveinkrapidl thepropeller-bars arraJ ged in series andsiipunisonandeng'age withtlie roadwaytoldraw ported inl averticallposition.within reaoh of I 5 the vehiclelforwardor by rev yrsing the rota theroadway, meansforgiving the same a re,- 45 tion of the'drive-'shaftl move the same backeiprocating movement. yand means. ,colrnpr'isf wardl `l my ing an ieccentrio .grooved :disk `operated. to lt' is obvi'oi'isl thatE vari'oiisy slig'glitI `rnodifi `za`` give fthei kpropellers .a ver tical, movement... l. tions` andfcliang'esmay be""madein` the de- 3., Inan apparatils for propellino' vehioles,. 2o talilfsoil constructionwtlio'ut departing Vfrom l the,propeller-bars,loosely mounts` andsup- 5o the spiritbftheinventionfi `'1ln'5r`eivore-l Q ported'in reciprocating ,cross-heads; saidbars i Y being moved verticallyby meansioi an eccen?.

'tric grooved disk operated by Cthe driver-shaft and a series oi connected'levers, as described..`

yIn testimony .whereof IafiX my signature 5 5 in presence of two witnesses.

notwi'shftyo conine,myself` to'tliv lejgac't con` structioni shown and l described, lbut wish toclaim all such moilifiedfiormsy as would `come y.

2 5 properlywithir the general scope of the invention.A l. y H

yHaving thus describ'edmy invention, what:

' yLetters Pat- .l y AUGUST AHLBRECHT. Witnesseszh u i FRED `O HEMI., WILLIAM Rossi.

l claim, and desire to secure ent, y1s-k 3o l. An i "appara'tiis` for lpropelling' fvehiolles, 

